US2603541A - Bearing and seal construction - Google Patents

Description

July 15, 1952 s. M. KRIEGBAUM BEARING AND SEAL CONSTRUCTION Filed Sept. 7, 1945 w M fi a a 7 z 4 2 a w 0 1 I I a 9 M 2 a :w 0 fi a 1 L ,1 J //n I %///K A w y a 2 a y fl w ive/Z2 02? Patented July 15, 1 952 BEARING 1 AND This invention relates to bearings, and particularly to. abearing'for. the disk furrow, opener of an argicultural. implement.

An object of theinvention is the provision of an improved bearing structure characterized by simplicity and efficiency; 2 j 7 Another object of. the inventionvis'the-provision of an improvedbearingstructure; for the diskingtool of an agricultural implement, wherein a metal-'wearing'ring bearsagainst the disk structure in sliding contact; therewith and is separated from :the'disk hanger byresilient sealing means adapted to urge the metal ring against the rotating disk structure;

'Another'object of the invention is. to provide in 'a'bearing a rotatablemember and a metal sealing ring in engagement therewith; a stationary member and-aQU-shaped resilient annulus. vhaving arm portions bonded to. the stationary membe'r and'the metal sealing. ring. v; e I

-' A'further object ofthe invention is to provide in a disk bearing a metalsealing ring in. sliding engagement with a rotatablejdiskstructure,. a

-'stationary part and-a fiexibleeUp-shaped annulus having arm: portions engaging-the part and the. ring and. a' springmember in;the annulus urgthering.

' .Other objects ing the arms in engagement. withthe, part and and advantages will'becomeclear when read in conjunction withgtheaccompanying drawings wherein:

Figureilpis asectional view in elevation of a bearing embodying the ,features r the present :invention;. n. L. v.,Eigure, 2 isa plan ,view of part oi the sealing structure; Figure 31s hanger; dep ndent... nom; an. imp m n ra structure, not shown, for supporting the disk and bearing. Hanger III is provided with a boss I I receivable in a recess l2 in a bearing block IS, The bearing block-and the hanger HI are secured firmly together byrneans ofabolt -l4 havin a ea 5,; a d: threaded t i and, 1 .receivea nut l'6. 1 Y

Block [3 is provided-with a flange portion 11 receivable inrth'e' hub-518101; 1a.- disl; 19 to which the hubis securedby rivetsz-fl. The hanger and bearing block ;I 3 are thus stationary Y and the 1 In Figure 1. the sealinaes u nre i SnQWI V. a

T 8-w .The; lon arm.

a!!! an t shq amif spect thereto.

.2.I-. .Thisis r accomplished by; h

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SEAL-CONSTRUCTION 1:

'br e M. m g ailm, nichmonafma, assi hoi 6- International Harvester ,flWiFNW-J n g a l rmplication September 7, 1946; Serial Nov..69 5,361 .f L

"j' ";8 'Qlaiins. (c1. 308+36.2)

09 m ernadisk l9 and its hub portion l8 are rotatable upon Mounteduponthe b aring b1ock 'l3fis a metal sealing ring 2!. I The faced the hubportion I8 is dished as at 21,, and the metal sealing ring a 2 I I engages thehub, portion near its radially outer portion providing a wed e-shaped opening: 23

therebetween for holding lubricant between the hub and the metal seal;

The metal sealing or wearing ring 2] bears against the hub l8 at alltimes and is fiexibly held thereagainst by asealing unit comprising a flexible U-shaped annulus 25 ofresilient maial, suchhas ,,rubber,.. having a bas p t n 6.. a l n arm; 21 and: arrelat ve y s t. arm ear a ain ttheh an er ..esa t the m a e ine r n 1- arin a a t e. innerv .i

or t am: 18.1 n the a nu us f am al washer 3 bouthe, P iP Q 'Y' ther e ch ada t to receive a projection 3l provided on the face of a the metal wearing ring 2| and projecting axially thereirom. The washer is thus-held against roz9,. h ch.. ;v v d with. a umbe o n t h t atio'n with respect tofthe metal sealing ring and the arm 28 of the annulus is held therebetween.

The other arm 21 of the annulus 2 5 provided with a number of males .1. eceive a cq r p n em be Q PI J W PM i 'lsx n es .wardly from the race oif the;hangerjiqto-hold the annulus agai'nst -relative rotation with re- L ew se ied fbetwee fth ar s of. th

nulus 25 isacircular spring member 34 adapted to bear againstthe arm 0mm annulus and to abut the radially inner'face of thelprojecti ons 3 hanger. q-w'lfhe shrine memb r is provided with springleaves 35 struck from the member 34 and terminating in bent portions 36.

These springfleaves" tsfblar' against the washer 29 and engagelprojections 31 extending inwardly fromthe washer to preventlrela'tiveiotation of the washerand the spring-'meniben I Thus the resilient sealing fri n g Zfiffholdsf the Wearing ifisfz f 'e a m ii wim the h [8 of the furrowopener'.fdisk [3 at all times e rdl th ew ne 311 T sk during operation thereofMThis is due to' the of Pa adygd 'c ib d -21 A *b' tially I icy ndr-ica'lj support, a rne'm'ber rotatable on ithe' support, a hjc'in rotatable'memberon the support, an finfl exib wearing ring -o'n t I port 'having sliding sealing *conta thaving its head portion In the modified form of the invention shown in Figure 4 the interlocking of parts is avoided. In Figure 4 the hub l8 bears against a wearing ring 2|, which difi'ers from the wearing ring of Figure l by providing a circumferential shoulder 38 which serves toabut the outer edge of a short arm 28 of a flexible annulus 25 having af longer "erm n The resiliency for holding the wearing ring against the disk furrow opener hub is provided in this case by the annulus alone.

bonded to the metal sea1ing1=ring132l%,"andi-thei arm 21 of theoannulus is bonded to apart in the form of a washer aey w ich *bea against the'hanger I0. Washer 3'9 are held against rotation upon the bearin block.

A simple and efiicient sealfor the bearing of a 'disk furr'o'w opener has been described 'in which foreign matter is excluded from the bearin'g at 'all tilrne's throughout the'oper'a'tion of th'e' -iinplemnt, which under "normal "circumstances operates under iver y adverse conditions.

' nayingaeseimea the invention it'should be uii'derstone "that various modifications may be made 'the'rein without 'departing from the spirit of the invention "claims.

7 or the-"scope ofthe appended -VVhat is olairr'ied:' isi g a U A-bearing structure comprising a substantially "cylindrical support; a member rotatable "on-the support;a'non-rotatable'memb'er on the 'suppo tgan mnexime: wearingringon the support having sliding sealing 1 contact with the rohavingi'ts head portion in en ageme'nt with the s pf ortand' 'radiallyextending arm" portions, one sau arm portionhaving s'ealing'ciontact; with "the inflxible ringfand the other arm 'en'gaging the frionf-rotatable -'frieinber, and means cooperative between the aims "of 'the annulus and hexeisoe ie ;fla ?andi r aa e m e respectively, to-hold thea-nnulus and ring against retauen.

mg'sti'fittre comprising a; substanrotatable member, a flexible U-shape v p I "@Wfii th support and radially extending ia'rm portions, one

"said arm portion having sealing 'contact with the inflexible ringf nd the othler arm engaging the non-rotatable ember, means for holding the arms in en age t 'witli 'the said ring-and said '--non-'-rotatable inember; respectively, "and means cooperative between the "arms ofth'e annulusand the asso'ciated rir'igand non-rdtat'able member," respectively, to hold ring against-rotation. 9 H V V 3. -A- hearing structure comprising -"a substanthe' annulus and tially cylindricalsupport, a member rotatable on the support, a non rotatablemember on the support, a part-'secured to the non-rotatable member, 'an inflexible "wearing ring on the support having sliding sealing contact with the rotatable member, and a flexible U-shaped annulus having its "head portion in engagement with "the support and radially extending arm portions; one said am portion having '-sealing contact with the inflexible ring, and the other" arm engaging said 'part on the non' rotatable membrysaid ear-sped between the hanger l0 and the bearing block I3 so that the washer, the annulus and thei'wearingring amns being bonded to the ring and to said part respectively.

4. A bearing structure comprising asubstantially cylindrical support, a member rotatable on the support, a non-rotatable member on the support, an inflexible wearing ring on the super ha i l d al ng cq iactw h the tat'able' member, a flexible lllshaped annulus 10. The arm 28 of the annulus is suitably having its head portionin' engagement with the support and radially extending arm portions, one said arm portion having sealing contact with :the inflexibleringand means serving as a washer between the annulus and the non-rotatable f mmberi-a nd engaging the other arm of said 'andthe washer, respectively.

annulusfisaid 'aifriis being bonded to the ring 5. A,bea1ingist1 ucture comprising a substantially cylindrical support; a member rotatable on the support, an inflexible wearing ring on the support having sliding sealing contact with the memben ia. non-rotatable: member on the support spaced" from theringimflxible U+sliaped annulus on the support'between' the ring and said non-rotatable member, "said "u-sha'pedzan- 'nulus'having its-head apjorition' engaging the support and radially extendin'garm portions'e'ngaging the ring ,and ithe non-rotatable tinember, resilient means surrounding-the: support between said-arms an'dwurgingthe/latter iniengagement with the ring and 1 the cnon' rotatable :member,

and interlocking parts-on theiannulus',itherring and the non-rotatable memberiarranged" to hold theiannulus' and: the ring against [rotations 6. A bearing structure -cor'nprising :aj substantially cylindrical support; a member-rotatable on the support,'s"an-inflexible wearing ring on the support: having sli'ding sea-ling'; contact -with the member; "a' non-erotatable: member on -;;the

support spaced from the ring,-a'- flex s annulus on 17119; pport ibetween'the" ring and said non-rotatable member; said? U shaped. -annulus having itshead g'portion engagingthe support" and radially extending arm portions ;engaging the ringland'Fthenon -rotatableamember, a spring-member between rthe farm-portions 1 of the annulus arrangedfito: nirge "said arms into engagement with "the 'ring and the non-rotatable member, and interlocking parts on the annulus,

' the ring andthe non rotatable' member arranged to "hold the "annulus and fthe' ring "against rotation. r :J Q r 7. A dilsk1bearing Ter anwigriculturalimple- "meat 'coinp'ri'sing' 'a' 'hanger,'*a*substantially cylintation; l

mammal; implement f-comp'rising a 'har'ige p'art "secured to the hanger; 'a substantially cylindfibal disk-slipport carried by the hanger, a diskrotatable' on the "support, a; substantially inflexible "wearing ring bn tlie "supportrhaxiin' s'li'cli'rig-"sea1ing*-con'- tact 'witli the rotatable 'iii'sk, and a fiexible'ushaped betweii tite naziger and the d-inte'rlocking farts'on ring, the arm portions of said annulus being Number bonded to said part on the hanger and the in- 1,082,084 flexible ring. 1,383,957 GEORGE M. KRIEBBAUM. 1,621,272 5 1,860,305 REFERENCES CITED 1,931,733 The following references are of record in the 2,250,343 file of this patent: UNITED STATES PATENTS w 3 M Number Name Date 868,007 Dodson Sept. 17, 1907 6 I Name Date Jones Dec. 23, 1913 Lewis July 5, 1921 Raymond Mar. 15, 1927 Baseman 1May24, 1932 Leibing Oct. 24, 1933 Beier July 22, 1941 Boden Feb. 16, 1943 Brummer Oct. 8, 1946 Callahan et a1. Oct. 8, 1946

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